AC3D is a well established, fully featured 3D modeling package. It features an easy to use interface, powerful polygon and vertex editing, a UV mapper, 2D/3D text, and subdivision surfaces. It supports many 3D file formats.

Achilles is a simulation of Darwinian evolution in a virtual world composed of virtual organisms. It uses Hebbian neural networks, and an extremely simplified physics model that allows virtual organisms to interact freely in the simulated environment.

Baudline is a time-frequency browser designed for scientific visualization of the spectral domain. Signal analysis is performed by Fourier, correlation, and raster transforms that create colorful spectrograms with vibrant detail. Conduct test and measurement experiments with the built in function generator, or play back audio files with a multitude of effects and filters. The baudline signal analyzer combines fast digital signal processing, versatile high speed displays, and continuous capture tools for hunting down and studying elusive signal characteristics.

Biggles is a Python module for the creation of publication-quality 2D scientific plots. Its features include an elegant, high-level interface, a simple TeX interpreter, and postscript, png, gif, svg, and x11 output formats.

BioJava aims to provide a comprehensive set of Java components for the rapid development of applications in Bioinformatics. It contains interfaces for representing Sequences, Features, and other important bioinformatics concepts. It can also read and write sequence data in a variety of common formats and communicate with Ensembl databases and with DAS and BioCorba servers.

BRL-CAD is a powerful constructive solid geometry solid modeling system that includes an interactive geometry editor, ray-tracing support for rendering and geometric analysis, path-tracing for realistic image synthesis, network distributed framebuffer support, and image and signal-processing tools.

The Bubbling Load Monitor (or "Bubblemon" for
short) is a system load monitor for the GNOME
panel. It looks like a vial containing water. The
water level indicates how much (electronic) memory
is in use. The color of the liquid indicates how
much swap space is used. The amount of bubbles
reflects the system CPU load. A message in a
bottle indicates there is unread mail. A reed-like
graph shows I/O load. On multi-core systems
the CPU with the highest load will bubble in the
middle, and the others on the sides, so it's
possible to see how well load gets distributed
between CPUs.

Cactus is a general, modular, parallel environment for solving systems of partial differential
equations. The code has been developed over many years by a large international
collaboration of numerical relativity and computational science research groups and can
be used to provide a portable platform for solving any system of partial differential
equations.

Coin is an implementation of Open Inventor. Open Inventor is the de facto standard API for retained-mode 3D graphics programming. Open Inventor has a highly extensible design, and has been designed to allow for rapid development of highly interactive 3D graphics applications in the fields of CAD, engineering, scientific computing, simulation, VRML, and visualization.